Q-factor improvement of phase noise degraded dpsk signals using asymmetric saturated regeneration

Hacene Chaouch, Earl Parsons, Tuomo Von Lerber, Marco Mattila, Ari Tervonen, Werner Weiershausen, Franko Kueppers

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We demonstrate a 6.3 dB improvement in Q-factor for RZ-DPSK signals using a shifted filter after a highly saturated SOA working in a contra-propagating colliding pulse scheme. We show first, both theoretically and by means of simulations, how the phase noise is transformed after demodulation. Then, we demonstrate experimentally, for the first time, that this configuration induces a spectral asymmetry in addition to self phase modulation that if associated with a shifted filter, removes significantly the noise present in both the demodulated marks and spaces. The Asymmetric Saturated Regeneration (ASR) is an enhanced version of the fiber based Mamyshev regenerator.

Original languageEnglish
Title of host publicationNumerical Analysis and Applied Mathematics - International Conference on Numerical Analysis and Applied Mathematics 2009, ICNAAM-2009
Number of pages1
DOIs
Publication statusPublished - 2009
Externally publishedYes
EventInternational Conference on Numerical Analysis and Applied Mathematics 2009, ICNAAM-2009 - Rethymno, Crete, Greece
Duration: 18 Sep 200922 Sep 2009

Publication series

NameAIP Conference Proceedings
Volume1168
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

ConferenceInternational Conference on Numerical Analysis and Applied Mathematics 2009, ICNAAM-2009
Country/TerritoryGreece
CityRethymno, Crete
Period18/09/0922/09/09

Keywords

  • Optical communications
  • Phase shift keying
  • Q-factor
  • Saturation
  • Semiconductor optical amplifiers

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